קָהָה

Ecclesiastes 10:10 If the iron be blunt, and he do not whet the edge, then must he put to more strength: but wisdom is profitable to direct. Jeremiah 31:29 In those days they shall say no more, The fathers have eaten a sour grape, and the children' s teeth are set on edge. Jeremiah 31:30 But every one shall die for his own iniquity: every man that eateth the sour grape, his teeth shall be set on edge. Ezekiel 18:2 What mean ye, that ye use this proverb concerning the land of Israel, saying, The fathers have eaten sour grapes, and the children' s teeth are set on edge?